US10712612B2ActiveUtilityA1

Display device

48
Assignee: SAKAI DISPLAY PRODUCTS CORPPriority: Feb 22, 2016Filed: Feb 22, 2016Granted: Jul 14, 2020
Est. expiryFeb 22, 2036(~9.6 yrs left)· nominal 20-yr term from priority
G02F 1/133605G02F 1/133603G02F 1/133611G02F 1/133606G02F 1/133608
48
PatentIndex Score
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Cited by
3
References
9
Claims

Abstract

To provide a display device whereby luminance distribution uniformity within a display surface can be improved. A display device of the present invention is provided with: a rectangular display panel, one surface of which displays an image; a substrate, which is disposed to face the other surface of the display panel, said the other surface being on the reverse side of the one surface, and on which a plurality of light sources are mounted; a diffuser plate disposed between the display panel and the substrate; and a supporting member, which has an opening, which light emitted from the light sources passes through, and which supports the peripheral end of the diffuser plate. The display device is also provided with reflecting members, which are respectively provided at the peripheries of the light sources close to four corner portions of the display panel, and which reflect light diffused by the diffuser plate to the corner portions of the display panel.

Claims

exact text as granted — not AI-modified
The invention claimed is: 
     
       1. A display apparatus comprising:
 a rectangular display panel having one surface on which an image is displayed; 
 a substrate on which a plurality of light sources are mounted, the substrate facing another surface of the display panel which is opposite to the one surface; 
 a diffusion plate disposed between the display panel and the substrate; 
 a support member having an opening through which light from the plurality of light sources passes and configured to support a peripheral portion of the diffusion plate; and 
 a reflection member, wherein 
 the plurality of light sources include a first light source located near a first corner that is one of four corners of the display panel, 
 the reflection member is located at least in a region that is located in the vicinity of the first light source and that includes a position opposite to the first corner with respect to the first light source, and 
 the reflection member reflects light diffused by the diffusion plate toward the first corner of the display panel without reflecting light emitted from the first light source toward the diffusion plate. 
 
     
     
       2. The display apparatus according to  claim 1 , wherein
 the reflection member is provided around the first light source located closest to the first corner of the display panel. 
 
     
     
       3. The display apparatus according to  claim 1 , wherein
 the reflection member has an inclined surface inclined such that height of the inclined surface from the substrate increases toward the first corner, and 
 the inclined surface reflects the light diffused by the diffusion plate. 
 
     
     
       4. The display apparatus according to  claim 1 , wherein
 the reflection member includes an accommodation section accommodating the first light source. 
 
     
     
       5. The display apparatus according to  claim 1 , wherein
 the reflection member is provided integrally with the support member. 
 
     
     
       6. The display apparatus according to  claim 1 , wherein
 the reflection member has a light reflectivity of at least 85%. 
 
     
     
       7. The display apparatus according to  claim 1 , wherein
 the reflection member surrounds the first light source located near the first corner of the display panel. 
 
     
     
       8. The display apparatus according to  claim 7 , wherein
 a part of the reflection member located close to the first corner of the display panel with respect to the first light source has a height that is higher than a height of another part of the reflection member located opposite to the first corner of the display panel with respect to the first light source. 
 
     
     
       9. The display apparatus according to  claim 1 , wherein
 the first light source is closest to the reflection member among the plurality of light sources.

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